Carburetor



a F. D. ACKLEY.

CARBURETOR.

APPLICATION FILED AUG-2, 1920.

Patented Sept.

i5 7 v INVENTOR.

A TTORNEY.

Patented Sept. 5, 1922.

oannunnronl 3 1 Application filed August 2,"'192o."seriai'1vo. 400,779.

To all whom it may concern Be it known that FRED D.- AOKLEY, a citizen of the United States, andresiding at Kirkland, in the county of King and State of Washington, has invented certain new and useful Improvements in warburetors, of which the following is a specification.

This invention relates to carburetor attachments designed particularly for separating raw fuel from atomized fuel.

An object of the invention is to provide a device of this character, which will be operated automatically by the suction of the engine, to allow the excessive amount of raw fuel to be separated at low speed, and to prevent the separation at high speed, when a'greater amount of fuel is needed for the eflicient operationof the engine.

The invention comprehends improvements in the details of construction which are particularly pointed out in the following description and claims.

In the drawings I Fig. 1 is a sectional view of the device applied between a carburetor and intake pipe of an engine, the parts being shown in position when the engine is running at a high speed. i

Fig. 2 is a sectional view on line -2 of Fig. 1.

1 indicates a cylindrical casing having end plates 2, which form a chamber for receiving the separated raw fuel. The casing 1 has a hollow extension 3 formed on the bottom thereof, adapted to have a pipe secured thereto, for conveying the raw fuel back to the carburetor or any other desired point.

The end plates 2 are formed with central aligned openings 5, in which is mounted a tube 6, having cut away portions 7 in one end thereof. Flanges 8 are secured to the end plates around the openings 5, and are pro vided with threaded openings 9, adapted to receive bolts for connecting the casing with the intake pipe A and the carburetor B, as shown in Fig. 1. One end plate has an opening formed therein at 10, in which is mounted a sleeve member 11, having a cap 12 screw-threaded on the outer end thereof. Within the sleeve, is slidably mounted a piston 13 and a spring 14 is connected with the piston and cap 12 to normally draw the piston toward the cap, which cap is open to the atmosphere at one end as at 19.

A lever 15 is pivotally mounted in the upper part of casing 1 and is formed with a yoke ie which straddles the tube e, and, is pivotally connected with a sleeve valve 17' slidably-mounted oil-said tube '6, the con neet'i'on of the I yoke with the sleeve valve be ng through pins 20 projecting upon the ends of the yoke and seating in slots 21 in .Y the sleeve valve to permit the necessary rela tive movement between these parts in the operation. link 18 is pivotally connected to lever 15 between the pivot and the yoke,

the other end being pivotally connected to i the piston. The sleeve valve isnof such length that it may be actuated to entirely close or open the cut away portions in the sleeve 6, except a small portion thereof, sufli clent to permit the initial suction: to act onpiston 13.

When an engine having this device con-i nected as shown in Fig. 1, is running at slow speed, the suction on the intake stroke. will. i be comparativelvgreat, which will exert its force 1n the casing l and will draw the piston inwardly in the sleeve 11 actuating the lever 15, which will slide. the sleeve valve on sleeve 6 to open the cut away portions 7. l

The atomized and raw fuel passing from the carburetor into the intake pipe will pass through thesleeve 6, the raw fuel dropping into the casing through the openings 7 due to the Weight thereof, and the atomized fuel passing through the intake'pipe into the engine. As the speed of the engine increases,

the vacuum or suction created in the casing will be reduced, and the spring will actuate the piston and the sleeve valve through its connections to close the cut away portions 7 or partially close them, which will-allow a greater amount of fuel to be drawn in to the engine cylinder which is necessary in the oflicient operation of the engine.

The sleeve valve will be opened and closed 7 to allow the separation of the raw fuel from the atomized fuel, according to the speed of the engine, the operation being governed automatically, and by the use of which, a considerable amount of fuel may be saved and an efficient operation of the engine had. By using the above described device, the percentage of carbon formed in the engine cylinders will be considerably reduced.

What I claim is 1. A carburetor attachment comprising a casing arranged beyond and on the suction side of the carburetor, said casing havlng a fuel passage therethrough formed with open ings, a sleeve valve sli-dably mounted on said passage and operative to control said openings, means mounted in the casing and arranged at one side of said passage and adapted to be operated in one direction by the suction of the engine, and a lever connection between said means and sleeve to operate the sleeve in accordance with the movement of the means.

2. A carburetor attachment adapted to be arranged in the manifold beyond the carburetor, a tube arranged in said casing and forming a continuation of the manifold,

said tube being formed With openings communicating with the casing, a sleeve slidable on said tube to control said openings, means mounted in the casing at one side of the tube to be moved in one direction under the suction through said tube, a spring for operating the means in the opposite direction, and lever connections intermediate said means and tube to cause said tube to become responsive to the movement of said means.

In testimony whereof I aifix my signature.

FRED D. ACKLEY. 

